While the Panasonic Lumix CM1 is undeniably pricey and bulky, its wealth of photography kit helps it achieve image quality that's unrivalled in the smartphone world. If you love the idea of always having a great camera to hand but don't want to be weighed down with two devices, the Lumix CM1 is the phone for you.

With really good photo and video quality, a great set of features and generally class-leading performance, the Panasonic Lumix DMC-LX100 is probably one of our favorite compact cameras ever. It's not for the inexperienced, though.

If you absolutely must have a phone with an optical zoom, the K Zoom is basically your only option. It's bulky though, and the pictures it takes aren't any better than the Galaxy S5's. You'll be far better off with a cheap Android phone and a decent compact digital camera.